New build nothing showing up on monitor

[LargeApe]

This is my first build ever and I may have bitten off more than I can chew. When I power up the PC nothing appears on monitor, it's just completely black (have tried 2 other fully functional monitors). When I power up the computer the DRAM LED lights up yellow and then roughly a minute after my CPU LED comes on and displays red. Could this possibly be an issue with the motherboard?

 

I have done all of the recommended procedures I could find to solve the issue:
- tried all RAM slots

- tried booting without RAM
- cleared CMOS

- reseating/replugging everything
- removed GPU
- checked if all cables were properly connected
- removed the cooler and checked CPU for bent pins/damage

 

GPU: RTX 2070 8 GB

PSU: Corsair CXM 550 W 80+

RAM: Corsair Vengeance LPX 16 GB (2 x 8 GB) DDR4-3000 Memory

MOBO: Asus PRIME Z390-A

CPU: Intel Core i7-9700K 3.6 GHz 8-Core

BIOS Version 1302

 

Sorry for the lighting in the images

[shoutingsteve]

Well, first off, don't try and turn it back on until you've put the CPU cooler back on.  But beside that, is your monitor waking up when you turn on the computer or is it staying a sleep state?  If it is waking up and showing black, that would lead me to believe that you need to set your video display out to the GPU.  you could also try hooking it up to a TV hdmi instead of to a monitor and see if you get anywhere with that (it would be a step in the right direction).

 

Also, are any error beeps coming out of it?